{"asset_map": {"bgm_main": {"url": "https://d2oir5eh8rty2e.cloudfront.net/assets/sounds/music/bgm_main_4572cf5b-7c19-440e-954b-c32bd1af08f5.mp3", "type": "audio", "prompt": "High-energy industrial metal mixed with horror ambiance for a zombie shooter. 150 BPM, aggressive distorted low-tuned guitar riffs, punishing industrial drum machine beats, and dark cinematic synth pads. Features occasional eerie choir stabs and deep sub-bass drops. Relentless and adrenaline-pumping atmosphere similar to DOOM (2016). Structure includes driving main sections and tense build-ups. Instrumental only, dark and intense mood, seamless loop.", "description": "High-energy industrial metal background music for the zombie shooter gameplay.", "subtype": "music", "aspect_ratio": null, "compression_suggestion": "original", "duration_secs": 90.04408163265306, "loop": true, "animation": null}, "muzzle_flash_radial_flipbook_2x4_256_clean.png": {"url": "https://dzmv1mxivz48k.cloudfront.net/images/Google_118012379502927147068/1780994359451_01KTNRJG4VDK9J05GED96PED59.muzzle_flash_radial_flipbook_2x4_256_clean.png", "type": "image", "prompt": null, "description": "Muzzle flash radial flipbook (2x4) PNG \u2014 clean frames on transparent background for weapon muzzle effects.", "subtype": null, "aspect_ratio": [1024, 512], "compression_suggestion": "medium", "duration_secs": null, "loop": null, "animation": null}, "weapon_icons_atlas.png": {"url": "https://d16qq0o35va7kz.cloudfront.net/images/Google_118012379502927147068/1781196083808_01KTVRYMK0VHMDZZXX0XSRVEQA.weapon_icons_atlas.png", "type": "image", "prompt": null, "description": "Weapon icons sprite atlas containing 7 weapon silhouettes in a horizontal strip: pistol, shotgun, sniper, katana, gatling gun, LMG, assault rifle. Used for weapon selection UI and HUD slots.", "subtype": null, "aspect_ratio": [3584, 512], "compression_suggestion": "medium", "duration_secs": null, "loop": null, "animation": null}, "sfx_sprite.mp3": {"url": "https://d16qq0o35va7kz.cloudfront.net/images/Google_118012379502927147068/1781194858311_01KTVQS7T6PMKMBQTCK2WAFRQ5.sfx_sprite.mp3", "type": "audio", "prompt": null, "description": "Audio sprite sheet containing all game sound effects in a single MP3 file: gunshots, reloads, zombie sounds, UI sounds, etc. Referenced by SFX_SPRITE_MAP offsets in the game code.", "subtype": null, "aspect_ratio": null, "compression_suggestion": "original", "duration_secs": 0, "loop": null, "animation": null}, "flame.webp": {"url": "https://dzmv1mxivz48k.cloudfront.net/images/Google_118012379502927147068/1782236241413_01KVTRXQG5ADQBSCVN50862EYS.flame.webp", "type": "image", "prompt": null, "description": "A realistic flame texture for flamethrower particles.", "subtype": null, "aspect_ratio": [256, 256], "compression_suggestion": "medium", "duration_secs": null, "loop": null, "animation": null}, "weapon_icon_flamethrower.png": {"url": "https://d2oir5eh8rty2e.cloudfront.net/assets/images/weapon_icon_flamethrower_png_226d2260-fd3c-4470-9b30-38a459ba553a.webp", "type": "image", "prompt": "Generate a sleek, high-tech flamethrower weapon silhouette icon. Pure white minimalist silhouette on a transparent background. Side-view perspective, clean sharp edges, showing distinct details of a fuel tank, grip, trigger, and nozzle. Tactical shooter HUD style, matching the aesthetic of weapon silhouettes in image 1. Professional game UI asset, high contrast, no internal shading.", "description": "A tactical high-tech flamethrower silhouette icon for the weapon selection UI.", "subtype": "ui", "aspect_ratio": [1413, 408], "compression_suggestion": "high", "duration_secs": null, "loop": null, "animation": null}, "sfx_flamethrower_loop": {"url": "https://d2oir5eh8rty2e.cloudfront.net/assets/sounds/effect/sfx_flamethrower_loop_3043d8a8-5ed6-4fd0-a6d3-1cd6867d5aa0.mp3", "type": "audio", "prompt": "Continuous roaring fire loop sound effect for a tactical flamethrower. Powerful, persistent burning roar with a warm low-end rumble and sharp hissing gas pressure. High-quality, clean sound profile for a first-person shooter. No crackling wood, focus on pressurized liquid fuel ignition. Seamlessly loopable, consistent intensity, no fade out.", "description": "Continuous roaring fire loop for a tactical flamethrower weapon in an FPS context.", "subtype": "effect", "aspect_ratio": null, "compression_suggestion": "original", "duration_secs": 10, "loop": true, "animation": null}}, "game_code": "\n\n\n\n \n Zombie Last Survivor\n \n \n \n \n \n\n\n\n
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ZOMBIE
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Defend the bunker against endless zombie hordes

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\n\n \n \n\n\n\n", "game_config": "{\"zombieHealthMultiplier\":0.8,\"zombieSpeedMultiplier\":0.9,\"startingWave\":1,\"headshotMultiplier\":2,\"lightingColor\":\"cool\",\"katanaSpeed\":1}", "game_design_document": "## Core Game Loop and Mechanics\n\n**Last Stand Bunker** combines first-person shooter mechanics with wave-based survival gameplay. Players defend a multi-room underground bunker from increasingly difficult zombie waves.\n\n### Moment-to-Moment Gameplay\n- Players move through a 3D bunker environment in first-person perspective\n- Zombies spawn from designated entry points and advance toward the player's position\n- Players aim and shoot using various weapons to eliminate zombies before they reach critical areas\n- Between waves, players can purchase new weapons, upgrade existing ones, and place barricades\n- Managing ammunition is crucial - players must balance firepower with conservation\n\n### Progression and Engagement\n- Each wave increases in difficulty with more zombies and tougher enemy types\n- Players earn currency by killing zombies, which can be spent on:\n - New weapons (unlocked progressively)\n - Weapon upgrades (damage, fire rate, magazine size)\n - Barricades to slow zombie advancement\n - Ammunition resupply\n- Score multipliers reward accuracy and consecutive kills\n- The challenge comes from resource management, positioning, and weapon selection\n\n### Win/Lose Conditions\n- **Lose Condition:** Zombies breach the bunker's core room (where the player respawns)\n- **Win Condition:** Survive as many waves as possible - this is an endless survival mode with high score tracking\n- After losing, players see their final wave number, kill count, and accuracy statistics\n\n### What Makes It Compelling\n- Satisfying gunplay with distinct weapon feels (sniper precision vs shotgun spread vs rocket explosions)\n- Tactical decisions about positioning and resource allocation\n- Escalating tension as waves become more challenging\n- Replayability through trying different weapon loadouts and strategies\n\n## Starting Scope\n\nFor the first iteration, we'll implement a **highly polished but simplified version** that captures the core FPS defense experience:\n\n### Phase 1 - Initial Implementation (Start Here)\n**Bunker Layout:**\n- Single large rectangular room with simple geometry\n- 2-3 entry corridors where zombies spawn\n- Clear sightlines for shooting\n\n**Weapons (3 types to start):**\n1. **Pistol** - Starting weapon, unlimited ammo, moderate damage\n2. **Shotgun** - Close range, high damage, limited ammo\n3. **Sniper Rifle** - Long range, very high damage, slow fire rate, limited ammo\n\n**Zombie Types:**\n- Single basic zombie type that walks toward the player\n- Simple health system (multiple hits to kill)\n\n**Core Systems:**\n- First-person movement and mouse look with pointer lock\n- Weapon switching (number keys 1-3)\n- Aiming and shooting mechanics\n- Hit detection and damage\n- Wave system (5 waves to start, increasing zombie count)\n- Simple currency system (earn points per kill)\n- Ammunition management (pickup ammo between waves)\n- Basic UI showing: health, ammo, current wave, score\n\n**Visual Style:**\n- Low-poly 3D art style for performance\n- Simple but atmospheric lighting\n- Clear visual feedback for hits and kills\n\n### Phase 2 - Future Enhancements (Later Iterations)\n- Additional weapons (machine gun, rocket launcher, flamethrower)\n- Multiple zombie types (fast runners, tank zombies, exploding zombies)\n- Multi-room bunker with strategic chokepoints\n- Placeable barricades and traps\n- Weapon upgrade system\n- More sophisticated AI (zombies break through doors, climb obstacles)\n- Power-ups and special abilities\n- Leaderboard integration\n\n## Game Perspective\n\n**3D First-Person** perspective is essential for this game concept.\n\n### Camera Implementation\n- Standard FPS camera with mouse look (pointer lock on desktop)\n- Camera positioned at player eye height (~1.7 units above ground)\n- Smooth mouse sensitivity for aiming\n- Weapon model visible in lower right of screen\n- Crosshair centered on screen for aiming\n\n### Mobile Adaptation\n- Left virtual joystick for movement (WASD equivalent)\n- Right virtual joystick for camera look and aiming\n- Tap right side of screen to shoot\n- Weapon switch buttons in bottom right corner\n- Auto-aim assistance to compensate for touch controls (subtle magnetism toward zombie heads)\n\n## Game World and Level Design\n\n### Bunker Layout (Phase 1)\nThe initial bunker is a single defensive room designed for clear gameplay:\n\n**Main Defense Chamber:**\n- Rectangular room approximately 20 units wide \u00d7 30 units deep \u00d7 4 units high\n- Player starts in the back third of the room (the \"safe zone\")\n- Three entry corridors at the far end where zombies spawn:\n - Left corridor (45\u00b0 angle)\n - Center corridor (straight ahead)\n - Right corridor (45\u00b0 angle)\n- Each corridor is 3 units wide \u00d7 10 units long\n\n**Environmental Details:**\n- Concrete walls with industrial bunker aesthetic\n- Metal support beams and pipes for visual interest\n- Dim overhead lighting with emergency lights near corridors\n- Ammo crates positioned near the back wall (interact to refill)\n- Weapon rack on side wall for weapon purchases\n\n**Spawn System:**\n- Zombies spawn at the far end of corridors (outside player's view)\n- They walk down corridors and enter the main chamber\n- Spawn rate increases with each wave\n- Multiple zombies can be active simultaneously\n\n**Spatial Strategy:**\n- Long sightlines favor sniper rifle\n- Corridor chokepoints favor shotgun\n- Player must rotate attention between three entry points\n- Backing up too far means less reaction time\n\n### Future Level Expansion (Phase 2+)\n- Multiple connected rooms with doors\n- Stairways to upper/lower bunker levels\n- Narrow corridors vs open chambers for varied combat\n- Destructible barricades that slow zombies\n- Ventilation shafts where special zombies emerge\n\n## Edit Mode Design\n\nEdit mode allows players to customize their defensive setup and game parameters before starting a wave.\n\n### Editable Properties\n\n**Weapon Loadout:**\n- Choose starting weapon (pistol, shotgun, sniper)\n- Set starting ammunition counts for each weapon\n- Toggle weapon availability (enable/disable specific weapons)\n\n**Difficulty Settings:**\n- Starting wave number (1-10)\n- Zombie health multiplier (0.5x - 3x)\n- Zombie speed multiplier (0.5x - 2x)\n- Starting currency amount (0 - 5000)\n\n**Visual Customization:**\n- Bunker lighting color (warm, cool, emergency red, night vision green)\n- Crosshair style (dot, cross, circle)\n- UI color scheme\n\n**Gameplay Modifiers:**\n- Headshot damage multiplier (1x - 5x)\n- Ammo scarcity (abundant, normal, scarce)\n- Enable/disable friendly fire (for future multiplayer)\n\n### Edit Mode Interface\n- Accessed from main menu before starting game\n- Clean panel-based UI with sliders and toggles\n- \"Reset to Default\" button for each section\n- \"Save Preset\" option to store favorite configurations\n- Preview window showing current bunker appearance\n\n### Constraints\n- Weapon damage values have reasonable ranges (can't one-shot everything)\n- Zombie counts per wave have maximums to prevent performance issues\n- Starting currency capped to prevent trivializing early waves\n- At least one weapon must be enabled\n\n## Control Design\n\n**Last Stand Bunker** is a 3D first-person shooter requiring precise aiming and quick weapon switching.\n\n### Desktop Controls (Keyboard + Mouse)\n\n**Movement:**\n- WASD or Arrow Keys - Move forward/left/back/right\n- Shift - Sprint (1.5x movement speed)\n- Space - Jump (small hop, mainly for navigating obstacles)\n\n**Camera & Aiming:**\n- Mouse Movement - Look around (pointer lock enabled during gameplay)\n- Pointer lock activates when clicking into game area\n- Pointer lock releases when pressing Escape or opening menus\n\n**Combat:**\n- Left Mouse Button - Fire weapon\n- Right Mouse Button - Aim down sights (zoom for sniper, tighter spread for shotgun)\n- R - Reload current weapon\n- 1, 2, 3, 4, 5 - Switch to weapon slot (pistol, shotgun, sniper, etc.)\n- Mouse Wheel - Cycle through available weapons\n\n**Interaction:**\n- E - Interact (pick up ammo, open weapon shop, place barricades)\n\n**UI:**\n- Tab - View scoreboard/stats\n- Escape - Pause menu\n- M - Toggle map (future feature)\n\n**Input Handling:**\n- Prevent default browser behavior for all game keys\n- Clear all input states on window blur\n- Convert keycodes to lowercase before storing state\n\n### Mobile Controls (Touch)\n\n**Movement:**\n- Left virtual joystick - Move in any direction\n - Appears where player touches left half of screen (below UI)\n - Base position set at touch start\n - Max radius: 60 pixels\n - Dead zone: 10 pixels\n - **Base repositioning:** If finger moves beyond max radius, slide the base so finger stays at max radius from base\n - Analog output: -1 to +1 for X and Y axes\n\n**Camera & Aiming:**\n- Right virtual joystick - Look around and aim\n - Appears where player touches right half of screen (below UI)\n - Same joystick mechanics as movement\n - Controls camera rotation\n - Includes subtle auto-aim assistance (15\u00b0 cone, slight pull toward zombie heads)\n\n**Combat:**\n- Tap anywhere on right half (outside joystick radius) - Fire weapon\n- Or: Auto-fire when aiming at enemies (toggle in settings)\n- Reload button - Bottom right corner (96\u00d796px)\n- Weapon switch buttons - Bottom right, above reload (64\u00d764px each)\n - Show weapon icons\n - Tap to switch\n\n**Interaction:**\n- Interact button appears contextually when near interactive objects (ammo crates, shop)\n- Positioned in center-bottom of screen (128\u00d796px)\n\n**UI:**\n- Pause button - Top right corner (64\u00d764px)\n- Settings button - Top right, below pause\n\n**Touch Handling:**\n- Track touch IDs to prevent interference between joysticks\n- Left touches (ID tracking) control movement only\n- Right touches control camera/shooting only\n- UI buttons have priority over joystick creation\n- Release pointer lock when showing pause/shop menus\n\n### Weapon-Specific Controls\n\n**Pistol:**\n- Semi-automatic (one shot per click)\n- No aim down sights\n- Fast weapon switch time\n\n**Shotgun:**\n- Pump action (slight delay between shots)\n- Aim down sights tightens spread by 30%\n- Slower weapon switch time\n\n**Sniper Rifle:**\n- Bolt action (longer delay between shots)\n- Aim down sights provides 2x zoom\n- Slowest weapon switch time\n- Scope sway when not holding breath (future: hold Shift to steady)\n\n### Control Feedback\n- Crosshair changes color when hovering over enemy (red tint)\n- Weapon recoil and camera kick\n- Hit markers appear on successful hits\n- Ammo counter flashes red when low (<25%)\n- Reload prevents firing\n\n## Art Style and Visual Theme\n\n**Last Stand Bunker** uses a **low-poly 3D art style** with a **dark, atmospheric military bunker aesthetic**. This style balances visual appeal with performance requirements for browser-based 3D gaming.\n\n### Overall Visual Direction\n- **Low-poly 3D models** with flat shading and minimal textures\n- **Dark, moody atmosphere** with strategic lighting\n- **Military/industrial bunker theme** - concrete, metal, emergency lighting\n- **Desaturated color palette** with pops of color for important elements\n- **Clear visual hierarchy** - enemies and interactive objects stand out\n\n### Color Palette\n**Environment:**\n- Concrete walls: Dark gray (#3a3a3a) to medium gray (#6b6b6b)\n- Metal elements: Gunmetal (#4a5568) with rust accents (#8b4513)\n- Floors: Darker gray (#2d2d2d) with subtle grid lines\n\n**Lighting:**\n- Primary: Dim cool white overhead lights (#b8c5d6)\n- Accent: Warm emergency lights near corridors (#ff6b35)\n- Ambient: Dark blue-gray (#1a1f2e) for shadows\n\n**Gameplay Elements:**\n- Zombies: Sickly green-gray skin (#7a8a6f), dark clothing\n- Player weapons: Metallic gray with black grips\n- Muzzle flash: Bright yellow-orange (#ffaa00)\n- Blood effects: Dark crimson (#8b0000)\n- UI elements: Bright cyan (#00d9ff) for readability\n\n### Asset Style Guidelines\n\n**3D Models:**\n- Low polygon count (zombies: 500-800 tris, weapons: 300-500 tris)\n- Flat or simple gradient shading\n- Hard edges and angular forms\n- No complex textures - use vertex colors or simple color blocks\n\n**Weapons:**\n- Recognizable silhouettes (clear weapon identification)\n- Metallic gray base with black accents\n- Visible mechanical details (trigger, magazine, scope)\n- Consistent scale relative to viewport\n\n**Zombies:**\n- Humanoid form with exaggerated proportions (longer arms, hunched posture)\n- Tattered clothing in dark colors\n- Visible wounds/decay (darker patches, exposed areas)\n- Glowing eyes for visibility in dark areas (#ff3333)\n- Distinct silhouette from different angles\n\n**Environment:**\n- Modular wall/floor pieces for bunker construction\n- Industrial details: pipes, vents, support beams, electrical boxes\n- Minimal decorative elements - focus on functional geometry\n- Strategic light sources (overhead fixtures, emergency strips)\n\n### Lighting Strategy\n- **Dim ambient lighting** to create tension\n- **Directional overhead lights** casting shadows\n- **Emergency lights** near zombie spawn corridors (red/orange glow)\n- **Muzzle flash** provides brief illumination during combat\n- **Zombie eyes glow** subtly to aid visibility\n\n### Visual Effects\n- **Muzzle flash:** Bright sprite at weapon barrel, 2-3 frames\n- **Blood splatter:** Small particle burst on zombie hit (dark red droplets)\n- **Death effect:** Zombie ragdoll or simple collapse\n- **Hit feedback:** Brief red outline flash on damaged zombie\n- **Bullet tracers:** Thin yellow lines for rapid-fire weapons (optional)\n\n### UI Visual Style\n- **Minimalist HUD** with semi-transparent dark panels\n- **Bright cyan text** (#00d9ff) for high contrast\n- **Weapon icon** in bottom right (simple silhouette)\n- **Ammo counter** with large, readable numbers\n- **Health bar** in bottom left (red fill, gray background)\n- **Wave indicator** at top center\n- **Crosshair:** Simple white cross or dot, changes to red when on target\n\n### Camera and Perspective\n- **FOV:** 75-80 degrees for comfortable FPS view\n- **Weapon viewmodel:** Positioned in lower right, slightly tilted\n- **Head bob:** Subtle movement during walking (can be toggled off)\n- **Recoil:** Camera kick upward on firing, returns smoothly\n\n### Performance Considerations\n- Use simple geometry to maintain 60 FPS target\n- Limit active zombies on screen (10-15 maximum)\n- Particle effects are minimal and short-lived\n- No complex shaders or post-processing effects\n- Static lighting (no real-time shadows for performance)\n\n### Consistency Requirements\n- All assets share the same low-poly aesthetic\n- Lighting angles consistent across all models\n- Color palette maintained throughout\n- Scale relationships preserved (zombie height ~1.8 units, player eye height ~1.7 units)", "persistent_storage_config": {"leaderboard": {"sort_ascending": false}}, "game_metadata": {"game_id": "01KTG9SHNB65HM9RSEPV2ZDKAF", "title": "zombie survivor", "description": "Survive endless zombie hordes with devastating weaponry\u2014sniper rifles, shotguns, katana, and gatling guns. Master limb dismemberment, visceral gore, and roguelike upgrades. How long can you endure?", "thumbnail_url": "https://d16qq0o35va7kz.cloudfront.net/images/Google_118012379502927147068/1782386283815_01KVZ80N97FKEWSZY76KRRXQ7Z.687b9e62-b9a7-4dea-bb86-5e91ebd2c487.png", "created_at": 1780811093, "updated_at": 1782693044883.485, "art_style": null, "is_remix": true, "base_game_id": "01KTC2C7W11XJ4919KPZE77BVF"}, "task_plan": null}